JP7714056B2 - メタンの乾式改質反応用二次元ニッケルシリケート分子篩触媒の製造方法およびこれによって製造されたメタンの乾式改質反応用二次元ニッケルシリケート分子篩触媒 - Google Patents
メタンの乾式改質反応用二次元ニッケルシリケート分子篩触媒の製造方法およびこれによって製造されたメタンの乾式改質反応用二次元ニッケルシリケート分子篩触媒Info
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- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen
- C01B3/02—Production of hydrogen; Production of gaseous mixtures containing hydrogen
- C01B3/32—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air
- C01B3/34—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air by reaction of hydrocarbons with gasifying agents
- C01B3/38—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air by reaction of hydrocarbons with gasifying agents using catalysts
- C01B3/40—Production of hydrogen; Production of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst
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- C01B2203/1041—Composition of the catalyst
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- C01B2203/1052—Nickel or cobalt catalysts
- C01B2203/1058—Nickel catalysts
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- C01B2203/1235—Hydrocarbons
- C01B2203/1241—Natural gas or methane
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Description
CH4+CO2→2CO+2H2△H°298=247kJ/mol-1
本発明は、一態様において、(a)層状のボロシリケートMWWゼオライト骨格型前駆体[B-MWW(P)]を合成する段階と、(b)前記B-MWW(P)にニッケル前駆体を添加し、水熱処理する段階と、を含むメタンの乾式改質反応用二次元ニッケルシリケート分子篩触媒の製造方法を提供する。
1.材料
B-MWW前駆体の合成に使用されたヘキサメチレンイミン(hexamethyleneimine)(99%)と水酸化ナトリウム(99%)は、Sigma-Aldrich(米国)から購入したものであり、ホウ酸(boric acid)(99.5%)は、Junsei Chemical(日本国)から購入し、フュームドシリカ(fumed silica)は、Evonik(日本国)から購入した。ニッケル前駆体としてnickel(II)nitrate hexahydrate(Ni(NO3)2・6H2O)(98%)をサムチョン(韓国)から購入した。
(1)実施例1~9の製造
:Ni-DML(Delaminated MWW layers)-X-Y-Z触媒
a)B-MWW前駆体の製造[B-MWW(P)]
ヘキサメチレンイミンと水酸化ナトリウムを蒸留水(deionized water)に溶解させた後、ホウ酸を50℃で添加した。ホウ酸が完全に分解した後、フュームドシリカを徐々に添加し、溶液を均質化した。
前記製造されたB-MWW(P)を0.25~1Mの硝酸ニッケル水和物(nickel(II)nitrate hexahydrate)水溶液に0.02g/mLの割合で添加し、混合した。前記混合溶液を水熱合成装置(Teflon-lined stainless autoclaves,PARR Instrument Company)に入れ、0~100rpmで撹拌しつつ、100~160℃で1~4日間加熱した。
担体がγ-Al2O3であり、活性金属の前駆体を硝酸ニッケル水和物(nickel(II)nitrate hexahydrate)とし、初期湿式含浸法で5wt%のニッケルが含浸したNi/γ-Al2O3を製造した。前記合成されたNi/γ-Al2O3を100℃で一晩中乾燥させた後、550℃で3時間焼成した。
前記Ni/γ-Al2O3と同じ方法を適用するものの、B-MWWを担体として使用してNi/B-MWWを製造する。
前記実施例で製造されたB-MWW前駆体を対照群とする。
(1)ICP分析
図2(a)は、前記製造された実施例1~4(Ni-DML-X-4-1)の組成をICPで元素分析してニッケル含有量を測定して示すグラフであり、下記表2は、前記元素分析をベースとして、MWW unit cellの72 T-atomsを仮定して、前記実施例1~4の骨格組成を計算して示したものであり、モル比を基準とする。ただし、□は、欠陥サイトを意味する。
図2(b)は、前記製造された実施例1~4触媒(Ni-DML-X-4-1)製造時の水熱処理温度によるN2吸着等温線形態を示す図であり、水熱処理温度が増加するにつれてType Iのミクロポーラス(microporous)構造からType IVのメソポーラス(mesoporous)構造に特性が変化した。これを通じて、三次元のB-MWW前駆体から二次元の層状構造に成功裏に変化したことが分かる。
図2(c)は、実施例1~4触媒(Ni-DML-X-4-1)のBET分析結果を示す図であり、これを通じて、B-MWW(P)の剥離が高い水熱温度で進行されるほど、Ni-DMLの外部表面積(external surface areas)が増加することが分かる。
触媒のメタンの乾式改質反応(DRM)実験は、固定層マイクロ反応器を有する連続フロー装置で大気圧下で行われ、生成物は、熱伝導度検出器(TCD)が装着されたガスクロマトグラフィー(GC)で分析した。実験に先立ち、触媒は、700℃で3時間の間流れる純粋なH2(50mL min-1)下で活性化し、同じ温度で0.5時間の間N2(60mL min-1)でファジーした(ただし、必要に応じて、H2前処理を行うことなく反応が行われた)。
CO2転換率(%)={(CO2)in-(CO2)out}/(CO2)in×100
H2/CO比=[(H2)out/2(CH4)in]/[(CO)out/{(CH4)in+(CO2)in}]
不活性化率=(10日転換-12h転換)/10日転換×100
図3は、DRM測定温度および使用時間による実施例1~4(Ni-DML-X-4-1)と比較例1(Ni/γ-Al2O3)および比較例2(Ni/B-MWW)の触媒活性を示す図であり、下記表3は、これらの結果を整理して示すものである。
図4および下記表4に水熱処理時間、ニッケル前駆体の濃度による触媒活性を示した。
Claims (4)
- (a)層状のボロシリケートMWWゼオライト骨格型前駆体[B-MWW(P)]を合成する段階と、
(b)前記B-MWW(P)にニッケル前駆体を添加し、水熱処理する段階と、を含む、メタンの乾式改質反応用二次元ニッケルシリケート分子篩触媒の製造方法。 - 前記(a)段階は、Si/Bのモル比が5.0~20.0のB-MWW(P)を合成することを特徴とする請求項1に記載のメタンの乾式改質反応用二次元ニッケルシリケート分子篩触媒の製造方法。
- 前記(b)段階でニッケル前駆体の濃度は、0.25~1Mであることを特徴とする請求項1に記載のメタンの乾式改質反応用二次元ニッケルシリケート分子篩触媒の製造方法。
- 前記(b)段階の水熱処理温度は、100~160℃であることを特徴とする請求項1に記載のメタンの乾式改質反応用二次元ニッケルシリケート分子篩触媒の製造方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2021-0069791 | 2021-05-31 | ||
| KR1020210069791A KR102408100B1 (ko) | 2021-05-31 | 2021-05-31 | 메탄의 건식 개질 반응용 2차원 니켈 실리케이트 분자체 촉매의 제조방법 및 이에 따라 제조된 메탄의 건식 개질 반응용 2차원 니켈 실리케이트 분자체 촉매 |
| PCT/KR2021/009424 WO2022255536A1 (ko) | 2021-05-31 | 2021-07-21 | 메탄의 건식 개질 반응용 2차원 니켈 실리케이트 분자체 촉매의 제조방법 및 이에 따라 제조된 메탄의 건식 개질 반응용 2차원 니켈 실리케이트 분자체 촉매 |
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| JP2024522956A JP2024522956A (ja) | 2024-06-24 |
| JP7714056B2 true JP7714056B2 (ja) | 2025-07-28 |
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| US (1) | US20240269658A1 (ja) |
| EP (1) | EP4349484A4 (ja) |
| JP (1) | JP7714056B2 (ja) |
| KR (1) | KR102408100B1 (ja) |
| CN (1) | CN117651610A (ja) |
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| CN116371460A (zh) * | 2023-03-16 | 2023-07-04 | 杭州极弱磁场重大科技基础设施研究院 | 用于甲烷干重整的沸石分子筛封装金属催化剂制备方法 |
| KR20240159086A (ko) * | 2023-04-28 | 2024-11-05 | 한화솔루션 주식회사 | 메탄 개질용 촉매 및 이의 제조방법 |
| KR20250063004A (ko) | 2023-10-31 | 2025-05-08 | 인천대학교 산학협력단 | 수열 처리를 이용한 암모니아 산화용 코발트 실리케이트 촉매 제조방법 |
| KR20250082816A (ko) | 2023-11-30 | 2025-06-09 | 인천대학교 산학협력단 | 수열 처리를 이용한 메탄의 건식 개질 반응용 마그네슘 실리케이트 촉매 제조방법 |
| KR20250082928A (ko) | 2023-11-30 | 2025-06-09 | 롯데케미칼 주식회사 | 메탄 건식 개질 반응용 2차원 촉매 복합체 및 이의 제조방법 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20190247838A1 (en) | 2018-02-14 | 2019-08-15 | Chevron U.S.A. Inc. | Delaminated layered zeolite precursors and method of preparing same without sonication |
| US20190275501A1 (en) | 2018-03-12 | 2019-09-12 | Su Yun Ha | Catalysts comprising silicon modified nickel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4210768A (en) * | 1978-08-24 | 1980-07-01 | Gulf Research And Development Company | Nickel silicate hydrogenation process |
| KR0132012B1 (ko) * | 1994-02-26 | 1998-04-08 | 강박광 | 탄화수소 개질용 니켈 담지 촉매의 제조방법 |
| KR100963778B1 (ko) * | 2008-07-25 | 2010-06-14 | 현대제철 주식회사 | 메탄의 이산화탄소 개질 반응 촉매의 제조방법 및 이를이용한 개질 방법 |
| SG10201606435XA (en) * | 2012-02-07 | 2016-09-29 | Basf Se | Process For The Preparation Of A Zeolitic Material |
| US10029244B2 (en) * | 2013-02-05 | 2018-07-24 | Basf Se | Process for preparing a titanium-containing zeolitic material having an MWW framework structure |
| KR101466470B1 (ko) * | 2013-03-08 | 2014-12-02 | 성균관대학교산학협력단 | 코어-셀 구조를 갖는 수증기-이산화탄소 혼합개질 반응용 니켈계 촉매 및 이의 제조방법 |
| KR101487387B1 (ko) | 2013-10-24 | 2015-01-28 | 한국에너지기술연구원 | 금속 카바이드계 메탄 리포밍 촉매 제조방법 및 그 방법에 의해 제조된 메탄 리포밍 촉매 |
| CN104437616B (zh) * | 2014-11-21 | 2017-10-10 | 武汉工程大学 | 层状含介孔钛硅分子筛催化剂及其制备方法和应用 |
| EP3509991B1 (en) * | 2016-09-06 | 2021-12-01 | Basf Se | Solidothermal synthesis of a boron-containing zeolite with an mww framework structure |
| KR101959379B1 (ko) | 2017-04-27 | 2019-03-18 | 전남대학교산학협력단 | 메탄의 복합 개질반응용 촉매 |
| CN111097494A (zh) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | 多组分复合物催化剂及其制备方法 |
| CN109678172B (zh) * | 2019-01-09 | 2021-05-04 | 武汉工程大学 | 一种含钛mww结构分子筛的制备方法及其催化环氧化的应用 |
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- 2021-07-21 US US18/565,661 patent/US20240269658A1/en active Pending
- 2021-07-21 CN CN202180098896.XA patent/CN117651610A/zh active Pending
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- 2021-07-21 WO PCT/KR2021/009424 patent/WO2022255536A1/ko not_active Ceased
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190247838A1 (en) | 2018-02-14 | 2019-08-15 | Chevron U.S.A. Inc. | Delaminated layered zeolite precursors and method of preparing same without sonication |
| US20190275501A1 (en) | 2018-03-12 | 2019-09-12 | Su Yun Ha | Catalysts comprising silicon modified nickel |
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| WO2022255536A1 (ko) | 2022-12-08 |
| KR102408100B1 (ko) | 2022-06-15 |
| CN117651610A (zh) | 2024-03-05 |
| JP2024522956A (ja) | 2024-06-24 |
| US20240269658A1 (en) | 2024-08-15 |
| EP4349484A4 (en) | 2025-07-02 |
| EP4349484A1 (en) | 2024-04-10 |
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